| 嵌段共聚物增容剂对LDPE／PS分散相粒径的影响 |
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| 引用本文： | 游长江 石小华. 嵌段共聚物增容剂对LDPE／PS分散相粒径的影响[J]. 合成橡胶工业, 1995, 18(6): 363-364 |
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| 作者姓名： | 游长江 石小华 |
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| 作者单位： | 广州华南理工大学材料科学研究所，中国科学院广州化学研究所 |
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| 基金项目： | 中国科学院首届青年奖励研究基金 |
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| 摘 要： | 研究了增容剂苯乙烯－丁二烯二嵌段共聚物，苯乙烯－乙烯／丙烯二嵌段共聚物和苯乙烯－乙烯／丁烯－苯乙烯三嵌段共聚物对ＬＤＰＥ／ＰＳ共混物分散相粒径尺寸的影响，结果表明，在增容剂用量约３％时，分散相的粒径尺寸接近最小值，进一步增加增容剂的用量，粒径尺寸没明显的变化；增容剂中苯乙烯嵌段和橡胶嵌段之间的溶度参数差越大，分子间排斥作用越大，分散相的粒径越小。
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| 关 键 词： | LDPE 聚乙烯 聚苯乙烯 共混物 增容剂 粒径 |
EFFECTS OF COMPATIBILIZER ON DISPERSED PHASE SIZE OF LDPE/PS BLENDS |
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| You Changjiang. EFFECTS OF COMPATIBILIZER ON DISPERSED PHASE SIZE OF LDPE/PS BLENDS[J]. China Synthetic Rubber Industry, 1995, 18(6): 363-364 |
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| Authors: | You Changjiang |
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| Abstract: | The effects of styrene-butadiene diblock copolymer,styrene-ethylene/propylene diblock copolymer and styrene-ethylene/butylene-styrene triblock copolymer on the size of dispersed phase of low density polyethylene/polystyrene(LDPE/PS)blends were studied.The results showed that the particle size of dispersed phase was near to minimum by adding 3% of compatibilizer,and no significant decrease was achieved by adding more compatibilizer.The greater the solubility parameter difference between the styrene segments and he rubber segments in the compatibilizer,the greater the repulsive interactions between the chemically different segments of the block copolymer,and the finer the dispersed phase size of the blends. |
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| Keywords: | low density polyethylene polystyrene blend compatibilizer solubility parameter |
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